Abstract: The present invention relates to entangled-type carbon nanotubes which have a bulk density of 31 kg/m3 to 85 kg/m3 and a ratio of tapped bulk density to bulk density of 1.37 to 2.05, and a method for preparing the entangled-type carbon nanotubes.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: A memory system may include: a memory device; and a controller. When at least one data group is received, the data group including a plurality of data which is required to be collectively processed, the controller reads preceding logical-to-physical (L2P) map information for the data group from a first table and stores the read L2P map information in a second table before reception of the plurality of the data of the data group is committed, and the controller stores the plurality of the data in the memory device, and the controller updates the L2P map information for the data group that is stored in the first table in response to the storing of the plurality of the data in the memory device.

Abstract: The present invention relates to a carbon nanotube composition including entangled-type carbon nanotubes and bundle-type carbon nanotubes, wherein the carbon nanotube composition has a specific surface area of 190 m2/g to 240 m2/g and a ratio of specific surface area to bulk density of 0.1 to 5.29.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: A data storage device may include a nonvolatile memory device, and a controller configured to increase an assert count, when a malfunction occurs while an operation for a command received from a host device is executed, the assert count representing the number of times the malfunction has occurred, and execute a flash translation layer (FTL) resetting operation in a read-dedicated mode in response to an initialization request from the host device when the assert count is greater than or equal to a reference value.

Abstract: The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m3, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.

Abstract: A memory system includes a memory device including plural non-volatile memory cells storing firmware and a controller configured to load the firmware in a volatile memory and employ a plurality of cores, each capable of performing an operation based on the firmware. A core, which is in a standby state or an idle state between the plurality of cores, is configured to check whether an error has occurred in the volatile memory in which the firmware is loaded.

Abstract: The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m3, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.

Abstract: In the present invention, by dry pulverizing carbon nanotubes to control wettability index of the carbon nanotubes, the maximum concentration of the carbon nanotubes that can be added to the dispersion solvent can be increased and the workability of the carbon nanotube dispersion can be improved. Further, from this, it is possible to more easily predict the maximum concentration of the carbon nanotubes that can be added to the dispersion solvent.

Abstract: Disclosed is an automatic authentication processing method and system using a dividing function.

Abstract: The present invention relates to a carbon composite, which comprises a polymer resin and a carbon material having specific conditions, thereby controlling a dielectric constant. According to the present invention, the carbon composite and a method for controlling a dielectric constant by using the same can be variously applied to a circuit, an electronic material and the like by establishing a correlation between the specific surface area of the carbon material and the dielectric property of the carbon composite.

Abstract: A data storage device may include a nonvolatile memory device, and a controller configured to increase an assert count, when a malfunction occurs while an operation for a command received from a host device is executed, the assert count representing the number of times the malfunction has occurred, and execute a flash translation layer (FTL) resetting operation in a read-dedicated mode in response to an initialization request from the host device when the assert count is greater than or equal to a reference value.

Abstract: The present invention relates to a carbon nanotube composition including entangled-type carbon nanotubes and bundle-type carbon nanotubes, wherein the carbon nanotube composition has a specific surface area of 190 m2/g to 240 m2/g and a ratio of specific surface area to bulk density of 0.1 to 5.29.

Abstract: The present invention relates to a carbon nanotube dispersion including carbon nanotubes, a polymer dispersant containing an amine, a phenolic compound including two or more aromatic rings, and an aqueous solvent, wherein the polymer dispersant and the phenolic compound including two or more aromatic rings are included in a weight ratio of 100:1 to 100:90, and having low viscosity and a small change of viscosity over time.

Abstract: The present invention provides a silicone composite material having a cured conductive rubber composition containing liquid silicone and carbon nanotubes, wherein the initial viscosity of the liquid silicone and the volume resistance of the silicone composite material satisfy a specific relationship, and when the silicone composite material is provided through the relationship equation, the reproducibility of the volume resistance value is excellent. A silicone composite material manufactured to satisfy the relationship equation is characterized in that the resistance deviation in the composite is small and the appearance properties thereof are excellent.

Abstract: The apparatus for manufacturing carbon nanotube pellets according to the present invention provides carbon nanotube pellets with increased apparent density by using only a small amount of solvent. The carbon nanotube pellets produced by the apparatus according to the present invention can improve various problems generated by scattering of powders. And since the density of the pellet form is high, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.

Abstract: The present invention provides: a conductive material dispersed liquid containing a conductive material, a dispersant, and a dispersion medium, wherein the conductive material comprises bundle-type carbon nanotubes having a bulk density in a range of 10-50 kg/m3 and a conductivity satisfying the conditions of Equation 1 below, thereby exhibiting excellent dispersibility and conductivity; and a lithium secondary battery, which is manufactured using the conductive material dispersed liquid and thus can exhibit excellent battery functions, especially, excellent output characteristics at low temperatures: ?X?10 log R??0.6X??[Equation 1] (in Equation 1 above, X is a bulk density of the carbon nanotubes, and R is a powder resistance of the carbon nanotubes under a pressure of 10 to 65 MPa.).

Abstract: Disclosed are a method and system for providing social media using a partition function. A method of providing social media may include receiving sharing information input in one or more user terminals included in a chat room, assigning partitioned pieces generated by partitioning the received sharing information based on the number of users included in the chat room to user terminals included in the chat room, receiving a request for the reading of specific-processed sharing information from a specific user terminal included in the chat room, restoring the specific-processed sharing information based on the partitioned pieces received from the user terminals included in the chat room, and transmitting the restored sharing information to the user terminal that has requested the reading of the sharing information.

Abstract: In the present invention, it is possible to provide a silicone rubber composite which exhibits a conductivity equal to or higher than that using a high content of carbon black, by using a low content of carbon nanotubes as a conductive filler instead of a high content of carbon black to impart conductivity to insulating silicone rubber.